Lac Operon

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Questions

• How does the a lac operon switch off?
• How are lac operons regulated?
• What is a lac operon?
• What is a regulatory gene?
• What is the regulatory gene, or the regulatory elements in an operon?
• In bacteria, what binds with the repressor to activate the lac operon?
• Is the lac operon a negative or positive control system?
• What is the function of the lac-A gene in the lac operon?
• What is a repressible operon?
• How does lactose get into an E. coli cell if the lac operon is turned "off" and the cell is not synthesizing lactose permease?
• What causes the lac operon to shut off?
• What is the function of the genes in the lac operon?
• If the level of lactose is low what happens to the lac operon system?
• What is the role of the active repressor?
• Is a trp operon an example of positive or negative feedback?
• What conditions must be present for transcription of the Lac Operon genes? What is the function of a repressor protein if lactose is absent?
• What is a gene body?
• Question #6f334
• Question #62d27